Cooking device

A cooking device, comprising:

• a housing having a cooking cavity;
• a gas circulation apparatus disposed in the housing and configured to drive gas in the cooking cavity to flow and circulate, wherein the gas circulation apparatus comprises a gas driving part, wherein the gas driving part comprises a driving cover body and a fan blade part rotatably disposed in the driving cover body, the driving cover body having a plurality of air holes being provided on a side surface of the driving cover body facing towards the cooking cavity;
• and
• a heating apparatus disposed in the cooking cavity and adjacent to the plurality of air holes, wherein the heating apparatus comprises an outer peripheral heating apparatus, an area enclosed by the outer peripheral heating apparatus accounting for at least half of a cross-sectional area of the cooking cavity,
• wherein the plurality of air holes comprise return air holes and outlet air holes disposed around the return air holes,
• wherein the outlet air holes comprise:
• a first ring of outlet air holes;
• a second ring of outlet air holes, the first ring of outlet air holes being disposed around the second ring of outlet air holes;
• and
• a third ring of outlet air holes, the second ring of outlet air holes being disposed around the third ring of outlet air holes, wherein:
• an area of each air hole in the first ring of outlet air holes is smaller than an area of each air hole in the second ring of outlet air holes;
• and/or
• an area of each air hole in the third ring of outlet air holes is smaller than the area of each air hole in the second ring of outlet air holes.